Calk for boots and shoes



Dec. 20, 1927. 1 653 526 0. WHITE CALK FOR BOOTS AND SHOES Filed Feb. 25, 1927 INVENTOR WITNESSES 0H0 W/u'te,

- I BY A TTORNEYS Patented Dec. 20, 1927.

warren STATES orro wnrrn, on SPOKANE, iWASI-IINGTON.

' CALK FOR BOOTS AND SHOES.

Application filed February 28, 1927. Serial No. 170,357.

This invention relates to calks for boots and shoes and more particularly to removable and replaceable callrs of this character, and is designed as an improvement on my Patent #1,188,868, granted June 27, 1916.

A primary object of the invention is to provide what is known as a twin callr, the points or spurs of which are removable when worn or broken and which may be' interchangeable to adapt the shoe in connection with which it is used forvarious purposes such as for loggers, drivers, sportsmen, miners, and to other persons requiring a firm footing.

Another object is to .so construct such a calk that it maybe used on soles made from leather tanned from American hide which is so tender and non-resistant that the calks in ordinary use will not hold insuch leather.

Another object is to provide a call: of this character which is simple andcheap to man- 7 ufacture and yet practical and when not desired for use may have their points or spurs removed and the attached members thereof covered and protected.

In carrying out these objects the invention is susceptible of modification without departing from the spirit or sacrificing any of the advantages of the claimed invention; there being shown in the drawings for illustrative purposes preferred and practical forms in which Figure 1 represents a. perspective view of a. shoe looking at the sole thereof with these improved calks shown applied to the sole,

Fig. 2 is a detail sectional view showing one of the calks in operative position, the sole being in section,

Fig. 3 is a detail perspective view of one form of point or spur for the call: detached, Fig. 4c is a similar view of a wrench used in applying the points or spurs to the holding members of the calk, Fig. 5 is a view similar to Fig. 3 showing a slightly different form of spur,

Fig. 6 is a view of still another form of spur,

Fig. 7 is a view similar to Fig. 6 showing a slightly diflerent form of spur,

Fig. 8 is a detail perspective view showing a slightly different form of spur prying and attaching bar, and

Fig. 9 is a detail perspective View of a protecting cap which is interchangeable with the spurs.

prises a bar 11 here shown in the form Ofa small metal rod having its ends bent outwardly at right angles and threaded as shown at 12 to which are designed to be detachably connected the twin spurs or points .13. Asshown, these spurs have tubular internally threaded bodies 1 1 to be screwed on the threaded ends 12 of bar 11 as shown clearly in Fig. 2. Extending from the body 14 is a pointed prong or spur 15 having a collar 16 formed at the junction ofthe spur 15 with the body 14. This collar 16 as shown in these figures is notched as at 17 at diametrically opposite points to receive the teeth 19 of a wrench 1b which is to be used in applying and removing the spurs.

The attaching members or staples 10 have their body portions or bars 11 arranged be- .tween the outer sole 2 and the inner sole 3 of the shoe before the. outer sole is attached with the threaded ends of said staples extending through the outer sole, and preferably projecting slightly beyond the outer face of said sole. After these staples have been so mounted, they may be either covered by the protecting cap 20 shown in Fig. 9

.until it is desired to use the spurs or points.

13 which may be readily substituted for the cap by removing said cap and threading the spurs onto the ends 12 of the staples. These spurs are tightened securely on said ends against the outer face of the sole 2.

The collars 16 operate as clamping members to assist in holding the points or spurs l3 engaged with the staples 10, the sole 2 being clamped between them and the bars 11 of the staples.

In Fig. 5 the spur 13 is similarly constructed to that shown in the figures above described except that the collar 16' thereof, instead of being provided with the diametrically disposed notches 17 which open radially through the collars have provided in their lower faces recesses 17 disposed at intervals throughout the periphery of the collar to receive the wrench for applying and removing the spur.

In the form shown in Fig. 6, the spur 13 has an annular collar 16 which is not notched or otherwise mutilated and the spur below said collar is provided with angular wrench receiving faces 17 b to facilitate the application and removal of the spur.

In the form shown in Fig. 7 the spur 13 has a disk-like collar 16 arranged at the junction of the body portion of the spur with the point thereof, said collar having fiat wrench receiving iaces 17 to facilitate the application and removal of the spur. All of these spurs shown in Figs. 5, 6 and 7 have the same reference numerals applied, except that in each case the component is different, the letter a being used in Fig. 5, b in Fig. 6, and 0 in Fig. 7. a

In Fig. 8 the staple or spur attaching members 10 instead of being constructed of a round metal rod is made in the form of a flat bar ll having outwardly right angular extending threaded ends 12 which are designed to extend through the outer sole 2 in the same manner as the ends 1 2 of the member 10 and operate in the same manner to support the spurs or points.

Obvlously, any desired form of point may be used in connection with the staples or attaching members and said points may be interchangeable to adapt the shoe in connection With which the device is used for various v purposes.

Without further description it is thought that the teaturesand advantages of the invention Will be readily apparent to those skilled in the art, and it will, of course, be understood that changes in the forms, proportions, and minor details of construction may be resorted to, without departing from the spirit of the invention, or its scope as claimed.

I claim A twin calk for boots and shoes comprising a substantially U-shaped member having a straight cross bar with substantially rightangular laterally extending ends, said ends being threaded, spurs to be mounted on said threadedends and each comprising a tubular internally threaded body to be screwed onto the ends of the U-shaped member, a pointed prong extending from said body and having a collar formed at the junction of the prong with the body, and means on said calks to facilitate their application to the attaching members.

OTTO WHITE. 

